CHARGER

• US 20080054854A1
• Filed: 05/07/2007
• Published: 03/06/2008
• Est. Priority Date: 09/01/2006
• Status: Active Grant

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: WANG, YI-LONG, WONG, SHIH-FANG
• Granted Patent: US 7,633,270 B2
• Time in Patent Office: Days
• US Class Current: 320/162
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A charger for charging a second battery is provided. The charger includes a charging circuit, a charging interface, the charger further comprise an audio interface, a switch and a sound output device. The switch used for connecting an audio interface to a charging circuit or a sound output device. When the sound output device connects to the audio interface, the sound output device plays the audio signals outputted by the audio player via the audio interface; when the charging circuit connected to the audio interface, the audio player output energy to the electronic device via the charging circuit and the charging interface, thereby charging the electronic device.

Claims

1. A charger comprising:

a charging circuit, a charging interface connectable with an electronic device to charge the electronic device;

an audio interface connectable with an audio player to receive audio signals and electrical energy therefrom, and a sound output device, the audio interface transmits the electrical energy to the charging circuit via the charging interface to charge the electronic device, and transmits the audio signals to a sound output device.

2. The charger as claimed in claim 1, wherein the charging circuit comprises:

a converting circuit, an energy accumulating circuit and an energy releasing circuit;

the converting circuit is used for amplifying an alternating current (AC) audio voltage from the audio player and rectifying the amplified AC audio voltage to a direct current (DC) voltage;

the energy accumulating circuit is used for accumulating the DC voltage, and the energy releasing circuit is for releasing the electricity energy to charge the electronic device when the accumulated DC voltage is equal to or greater than a predetermine voltage value.

3. The charger as claimed in claim 2, wherein the charging circuit further comprises a detecting circuit and a Micro Control Unit (MCU), the detecting circuit is used for detecting a voltage value of the accumulated DC voltage and sends a detected voltage value to the MCU;

the MCU compares the detected voltage value with the predetermined voltage value and outputs a control signal corresponding to a comparison result to the energy releasing circuit.

4. The charger as claimed in claim 3, wherein if the detected voltage value is equal to or greater than the pre-determined voltage value, the control signal is a release signal that signals the energy releasing circuit to release energy to the charging interface.

5. The charger as claimed in claim 3, wherein if the detected voltage value is less than the predetermined voltage value, the control signal is an inhibit signal that signals the energy releasing circuit stop releasing energy to the charging interface.

6. The charger as claimed in claim 1, further comprising a switch for switching the audio interface to the sound output device or the charging circuit, when the sound output device connects with the audio interface, the audio interface transmits audio signal to the sound output device;

when the charging circuit connects with the audio interface, the audio interface transmits electrical energy to the electronic device via the charging circuit and the charging interface.

9. The charger as claimed in claim 1, further comprising a switch and a sound output device, the switch being used for switch the audio interface to connect with the charging circuit or with the sound output device.

10. The charger as claimed in claim 9, wherein the audio interface is further used to receive audio signals from the audio player and transmitting the audio signals to the sound output device when the sound output device is connected to the audio player by the switch.

7. A charger comprising:

a charging circuit, a charging interface connected to an electronic device, and an audio interface being used to connect with an audio player to receive electrical energy therefrom, wherein, the charging circuit comprises a converting circuit, a energy accumulating circuit, and an energy releasing circuit;

the converting circuit is used for amplifying the an alternating current (AC) audio voltage outputted by the audio player and rectifying the AC audio voltage into a direct current (DC) voltage;

the energy accumulating circuit is used for accumulating the DC voltage, and the energy releasing circuit is used for releasing the electricity energy to the electronic device via the charging interface when the detected voltage value is equal to or greater than a predetermined voltage value.

8. The charger as claimed in claim 7, wherein the charging circuit further comprises a detecting circuit and micro-control unit, the detecting circuit is used for detecting a voltage value of the accumulated DC voltage and supplying the detected voltage value to the micro-control unit (MCU);

the MCU compares the detected voltage value with a predetermined voltage value and outputs a control signal corresponding to the comparison result to the energy releasing circuit;

the control signal is used for controlling the energy releasing circuit.